Continuous weigh feeders

By Plant Engineering Staff March 6, 2007

Better-Weigh continuous feeders for gravimetric feeding of dry bulk materials can be used where it is necessary to determine actual feed rates on a loss-of-weight basis. Available in seven models with feed rates from 1 to 550 CFH (larger sizes available), these continuous feeders are designed to provide feeding in either batch or continuous mode depending on the arrangement of the feeder’s control electronics. In batch mode, the batch controller is used to control the fast (bulk) and slow (dribble) speeds of the feeder. Accuracies of +/- 0.5% can be easily achieved in 2 pound or less batches, and +/- 0.25% with 3 pound or greater batches with time spans of 30 to 90 seconds. In continuous mode, the feeder’s electronic controller is used to constantly monitor loss-of-weight of material per time in order to maintain a continuous loss-of-weight with an accuracy of +/- 0.25% to 0.50%.

Metalfab, Inc.